Want a high-power, insanely bright, totally portable flash unit so you can shoot street skiing like the pros? This is the one! 600W, rechargeable, and usually gets about 50 flashes per charge; it's nearly blindingly bright. Comes with a remote trigger that mounts to a hot-shoe, an attachment for studio flash stands, and an intense carrying case. The flash reliably syncs at shutter speeds up to about 1/200th of a second.